Arbuscular mycorrhizal symbiosis regulates hormone and osmotic equilibrium of Lycium barbarum L. under salt stress

文献类型： 外文期刊

第一作者： Liu, H. G.

作者： Liu, H. G.;Wang, Y. J.;Hart, M.;Liu, H. G.;Chen, H.;Tang, M.

作者机构：

关键词： ABA;arbuscular mycorrhiza;IAA;photosynthesis;salt tolerance

期刊名称：MYCOSPHERE （ 影响因子：4.211； 五年影响因子：2.866 ）

ISSN： 2077-7000

年卷期： 2016 年 7 卷 6 期

页码：

收录情况： SCI

摘要： Arbuscular mycorrhizal fungi (AMF) enhance salt tolerance of host plants via multiple mechanisms, but their effect on hormone mediated tolerance is unclear. The influence of AMF on hormone regulation and osmotic adjustment of Lycium barbarum L. (Goji) under salt stress was evaluated. AMF enhanced indol-3-acetic acid (IAA) in leaves and roots and abscisic acid (ABA) in leaves of Goji growing in saline soils. These changes resulted in enhanced osmotic adjustment in mycorrhizal plants, leading to higher leaf water potential despite saline conditions. AM symbiosis improved photosynthesis under 100 mM salt level and stimulated the growth of Goji plants, especially for roots under salt stress. These results enhance our understanding on how AMF contribute to salt tolerance of host plants via hormone regulation and highlight its promising role for sustaining crop production as bio-ameliorator.

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